head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Optimization · Practiced Mastery
Aging Ezio chases Altair's legacy through Constantinople in the trilogy's closer.

Execution · Practiced Mastery
An open-city sequel deepening freeflow combat and predator gadget play.
Assassin's Creed Revelations leans Optimization (Practiced Mastery); Batman: Arkham City leans Execution (Practiced Mastery).
Batman: Arkham City leans a little harder on execution, though the gap is small.
Assassin's Creed Revelations
Hookblade traversal and forgiving counters
Batman: Arkham City
Combo chains and counters need timing.
Assassin's Creed Revelations leans a little harder on reads, though the gap is small.
Assassin's Creed Revelations
Multiplayer hide-and-hunt kept human bluffing
Batman: Arkham City
Enemies scripted, not adaptive.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Revelations
Fixed missions
Batman: Arkham City
Fixed encounters and challenges.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Assassin's Creed Revelations
Den defense and city investment systems
Batman: Arkham City
Gadget combos and challenge maps learnable.
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.